title: Surface NMR Using Laser-Polarized 129Xe under Magic Angle Spinning Conditions
abstract: NMR signals of surface nuclei of solids may be enhanced by the transfer of spin polarization from laser-polarized noble gases. Until now such experiments have not been feasible under conditions of magic angle spinning. In the present contribution it is shown that laser-polarized 129Xe can be inserted into a spinning rotor under continuous-flow conditions using helium as a carrier gas. Effective adsorption of xenon on the sample occurs at temperatures of about 163-173 K making possible the observation of a spin polarization induced nuclear Overhauser effect (SPINOE) from the laser-polarized 129Xe to surface 1H nuclei of SiO2 (AEROSIL300). This technique opens the way to selectively enhanced high-resolution multinuclear surface NMR experiments. Copyright 1998 Academic Press. Copyright 1998 Academic Press
authors.affiliation: Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California
authors.initials: E
authors.lastname: Brunner
authors.initials: R
authors.lastname: Seydoux
authors.initials: M
authors.lastname: Haake
authors.initials: A
authors.lastname: Pines
authors.initials: JA
authors.lastname: Reimer